Study of the inhibitory effect of Quercus Coccifera's aqueous extract on Staphylococcus aureus and Pseudomonas aeruginosa In vitro



Arezo Judaki1, Jafar Panahi2, Mohamad Reza Havasian2, Parnian Tajbakhsh2, Mohamad Ali Roozegar3*



1Department of Gastroenterology, Ilam University of Medical Sciences, Ilam/ Iran; 2Student research of committee, Ilam University of Medical Sciences, Ilam/Iran; 3Department of Periodontics, Faculty of Dentistry, Ilam University of Medical Sciences, Ilam, Iran


Email; *Corresponding author


Article Type




Received November 15, 2014; Accepted November 18, 2014; Published November 27, 2014



The use of therapeutic herbs has become of great importance these days due to the increase in drug resistance. From a long time ago the Venus' navel plant has been used to treat infections. In this study the antibacterial effect of the aqueous extract from the Quercus coccifera (jaft) herb, under laboratory conditions. This study was carried out experimentally. After collecting the Venus navel herb, it was dried in a warm dry environment away from direct sunlight in the shade. The alcoholic extract was prepared using a standard method. Clinical samples of staphylococcus aureus and pseudomonas aeruginosa were acquired from Ilam's health care institutes. The inhibitory effect of the extracts was analysed in the Mueller Hinton using the disk diffusion method for both bacteria. Then MIC and MBC of the extracts was determined using the Macro broth dilution method. At its highest concentration the aqueous extract had an inhibition zone of 27.2 and 23.7 mm on staphylococcus aureus and pseudomonas aeruginosa consecutively. The MIC and MBC for staphylococcus aureus were 10 and 12.5 μg/ml and for pseudomonas aeruginosa they were 10 and 17.5 μg/m consecutively. The results of this study show the strong antimicrobial effect of jaft's aqueous extract on staphylococcus aureus and pseudomonas aeruginosa and if more studies are based on this topic it could be a substitute for common antibiotics.



aqueous extract, staphylococcus aureus, pseudomonas aeruginosa, MIC, MBC.



Judaki et al.   Bioinformation 10(11): 689-692 (2014)

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P Kangueane






Biomedical Informatics



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